CN102241120A - Pressure device for locking mould - Google Patents

Pressure device for locking mould Download PDF

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Publication number
CN102241120A
CN102241120A CN2011101799107A CN201110179910A CN102241120A CN 102241120 A CN102241120 A CN 102241120A CN 2011101799107 A CN2011101799107 A CN 2011101799107A CN 201110179910 A CN201110179910 A CN 201110179910A CN 102241120 A CN102241120 A CN 102241120A
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CN
China
Prior art keywords
pressure
mould
push pedal
locked mode
pressure bladder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2011101799107A
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Chinese (zh)
Other versions
CN102241120B (en
Inventor
陈国永
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hu Tongqing
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201110179910.7A priority Critical patent/CN102241120B/en
Publication of CN102241120A publication Critical patent/CN102241120A/en
Priority to PCT/CN2012/000866 priority patent/WO2013000274A1/en
Application granted granted Critical
Publication of CN102241120B publication Critical patent/CN102241120B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/26—Mechanisms or devices for locking or opening dies
    • B22D17/266—Mechanisms or devices for locking or opening dies hydraulically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/64—Mould opening, closing or clamping devices
    • B29C45/67—Mould opening, closing or clamping devices hydraulic
    • B29C45/6707—Mould opening, closing or clamping devices hydraulic without relative movement between the piston and the cylinder of the clamping device during the mould opening or closing movement
    • B29C45/6714—Mould opening, closing or clamping devices hydraulic without relative movement between the piston and the cylinder of the clamping device during the mould opening or closing movement using a separate element transmitting the mould clamping force from the clamping cylinder to the mould
    • B29C45/6721—Mould opening, closing or clamping devices hydraulic without relative movement between the piston and the cylinder of the clamping device during the mould opening or closing movement using a separate element transmitting the mould clamping force from the clamping cylinder to the mould the separate element being displaceable with respect to the mould or the clamping cylinder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/64—Mould opening, closing or clamping devices
    • B29C45/67—Mould opening, closing or clamping devices hydraulic
    • B29C45/6778—Stroke adjusting or limiting means

Abstract

The invention relates to a pressure device for locking a mould. The pressure device comprises a pushing plate, wherein the pushing plate is arranged between a mould plate of a mould assembling mechanism and a corresponding mould; a clearance is reserved between the pushing plate and the mould plate; a pressure bag is arranged in the clearance; the pressure bag is made of elastic plastic material; and a metal connector, which is connected with a hydraulic device for filling a pressure medium into the pressure bag, is formed on a side wall of the pressure bag. Compared with the prior art, the pressure device for locking the mould provided by the invention can be used together with the mould assembling mechanism of related equipment, the defects of a hydraulic mould assembling mechanism, such as complex structure, high cost, low efficiency and high oil linkage probability, can be overcome. Meanwhile, the defects that a crank shaft type mould assembling mechanism is difficult to be controlled, can be easily abraded and has low precision and short service life are also overcome. In the pressure device for locking mould, the pushing plate and the pressure bag arranged between the mould plate and the mould of the mould assembling mechanism are used for replacing a traditional oil cylinder to realize a mould locking function of the mould assembling mechanism for an industrial machine, therefore the effects of high pressure rise speed and no need of lubrication can be achieved. Besides, the pressure device has the advantages of low manufacturing cost, convenience in use, low energy consumption and long service life.

Description

A kind of locked mode pressure apparatus
Technical field
The present invention relates to pressure apparatus, specifically refer to a kind of locked mode pressure apparatus.
Background technology
In industrial forming field, for example injection-moulding plastic, die cast metal moulding and other products need operations such as mold pressing or compacting all need to operate under certain pressure, adopt clamping mechanism to come to provide and keep-up pressure to these operations usually.The clamping mechanism that uses has two kinds usually at present, and a kind of is the full hydraulic clamping mechanism, and another kind is a toggle link mechanical lock mold mechanism.
The full hydraulic clamping mechanism promotes moving platen by the oil cylinder that is installed on the machine template, pushes mould to solid plate direction matched moulds, finally comes mold-locked by the high pressure of setting up the oil cylinder inner fluid.Owing to will guarantee that the active force of mold-locked is very big, make that required oil cylinder is bulky, cost is very high, and the oil cylinder volume is big simultaneously, the topping up difficulty, efficient is low, makes difficulty, and easily leaks.
The toggle rod type clamping mechanism is made up of the toggle side rod mechanism of Mode-locking oil cylinder and two symmetries, and when locked mode, mould shifting oil cylinder advances hydraulic oil and promotes crosshead with the crank connecting rod support directly, and system produces strain and reaches clamp force.Because clamp force is to reach by the system resilience distortion, so the clamp force inaccuracy, the clamp force of different molding cycles is adjusted difficulty; clamp force in the same molding cycle can not be adjusted; and this mechanical clamping mechanism is difficult lubricated, damages easily, and service life is short.
Summary of the invention
Technical problem to be solved by this invention is that the present situation at prior art provides a kind of and can substitute the locked mode pressure apparatus that locked mode function and clamp force are adjusted easily, can not leaked and cost is low that traditional hydraulic jack is used for the machine clamping mechanism.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: this locked mode pressure apparatus; it is characterized in that comprising the template that is arranged on clamping mechanism and the push pedal between the corresponding mould; has the space between described push pedal and the template; be provided with a pressure bladder in this space; this pressure bladder adopts the preparation of rubber-like plastic cement material, and the sidewall of described pressure bladder is provided with the metal interface that is connected with the hydraulic test that fills the plus-pressure medium in this pressure bladder.
Consider and the conformability of existing equipment that described pressure bladder and push pedal be structure in the form of a ring.Pressure bladder is designed to circulus, makes things convenient for ejecting mechanism to eject product by former route; Or injection mechanism penetrates by former route
The rounded circulus of described pressure bladder, and the ratio of the external diameter of this pressure bladder and the height in described space is 20-300.With pressure bladder and void designs is flat, and use in the structure that can the better fit existing equipment and the space of existing equipment, and the flat structure is than other structure, and the service life after the big and pressure-bearing of effective area is better.
Preferably, the height in described space is 5-30mm; The thickness of the cyst wall of described pressure bladder is 1.5-8.0mm; This size can better cooperate the space of existing injector, die casting machine or forcing press to use.
As the improvement of such scheme, described pressure bladder comprises first wall sheet and the second wall sheet suitable with the cross section of this pressure bladder; The inwardly folding back of the periphery of described first wall sheet is mutually bonding with the periphery of the second wall sheet, and the outer wall cementation laminated of promptly described first wall sheet periphery is on the inwall of the described second wall sheet periphery.This structure makes things convenient for the manufacturing of pressure bladder, and the superimposed bonding direct impact that can in punching press, avoid pressure medium to the slit, edge in back of periphery, effectively guarantee the security of use and the service life of pressure bladder, and in pressure maintaining period, can make tighter, bonding more firm that superimposed part presses after the punching press.
In order to guarantee the bonding of the first wall sheet and the second wall sheet, described first wall sheet and the described second wall sheet be the surface irregularity of bonding portion mutually; Binding agent can be penetrated in each wall sheet better like this, and the fastness after bonding is better.
Because the desired pressure of locked mode is higher usually, when filling pressure medium in pressure bladder, pressure medium has to the mobile trend of the fit clearance direction of push pedal and template, and this trend plays the effect of a shearing force to the cyst wall of pressure bladder.In order to offset or avoid this shearing force, as the improvement of such scheme, the surface of the described template of described push pedal subtend is provided with annular recess.
Preferably, the longitudinal section of described groove is an arc, and this structure is to the good buffer effect of pressure.
The depth capacity of described groove is 1.0mm.
In theory, the distance at groove distance push pedal edge is more little will get well, but groove can not acutangulate with the circumferential of push pedal, and when distance was zero, the acute angle that the cooperation circumference of the face of groove and push pedal forms can the breakdown pressure capsule.Preferably, the distance at the described push pedal of described groove distance edge is 0.5-1.0mm.
Equipment for the clamping mechanism transverse movement; because the template of clamping mechanism and the gravity effect of push pedal self; therefore the space between template and two counterfaces of push pedal can be slightly different; the fit clearance that is the lower surface is less than the fit clearance between the upper surface; like this, during relative motion, the wearing and tearing between the lower surface are more serious between push pedal and the template; and the fit clearance between the upper surface is bigger, and pressure is to the shear action of pressure bladder cyst wall in the time of can increasing the weight of punching press when serious.For fear of the appearance of this situation, described push pedal and described template are provided with the limited post of guiding usefulness, and this limited post is located in described push pedal and the described template and with described pressure bladder and does not contact, and comes antigravity by limited post.
Compared with prior art, locked mode provided by the present invention cooperates the clamping on the relevant device to use with pressure apparatus, has overcome fluid pressure type clamping mechanism complex structure, cost height, efficient is low and the shortcoming of easy oil leakage; Overcome also simultaneously that toggle formula clamping clamp force is difficult to control, precision is low, easy to wear and defective that the life-span is short.The present invention is provided with the locked mode function that push pedal and pressure bladder substitute existing fluid pressure type and toggle rod type clamping mechanism between the template of clamping mechanism and mould, the rate of rise is fast, and low cost of manufacture, and is easy to use, and energy consumption is little, long service life.
Description of drawings
Fig. 1 is the perspective view of embodiment of the invention user mode;
Fig. 2 is the transverse sectional view of Fig. 1;
Fig. 3 is the cutaway view of pressure bladder in the embodiment of the invention.
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Present embodiment is that example illustrates this locked mode pressure apparatus with the injector.
As shown in Figure 1 to Figure 3, this locked mode is provided with between the template 2 of mould 1 and clamping mechanism with pressure apparatus; In the prior art, clamping mechanism includes three templates, the one, rear pattern plate, the one, moving platen, the one, solid plate.During work, solid plate is motionless usually, and moving platen moves back and forth.The pressure apparatus that present embodiment provided can be arranged between moving platen and the mould 1, also can be arranged between solid plate and the mould, and solid plate and moving platen are referred to as template.Pressure apparatus in the present embodiment comprises:
Push pedal 3 is arranged between template 2 and the mould 1, also can be that the template with the clamping mechanism on the existing equipment is divided into two, and a part is done push pedal, and another part is done template.Push pedal 3 in the present embodiment and template 2 are the concave-convex structure that cooperatively interacts.Space 6 between push pedal 3 and the template 2 is arranged on corresponding concavo-convex position, and the height in space 6 is 8mm in the present embodiment.Outer peripheral edges and inner peripheral position near push pedal on the surface of push pedal 3 subtend templates 2 are provided with two annular recess 31, and the longitudinal section of this groove 31 is an arc, and the depth capacity of groove 31 is 1.0mm, and the distance at Edge Distance push pedal 3 edges of groove is 0.8mm.
Pressure bladder 4 adopts the manufacturing of rubber-like plastic material, comprises the first wall sheet 41 and the second wall sheet 42 of circular ring.The external diameter of the first wall sheet 41 and the second wall sheet 42 is 260mm, and internal diameter is 100mm, and wall thickness is 3mm.The outer wall of first wall sheet periphery and the inwall of the second wall sheet periphery are made it coarse with the file polishing, even this two parts surface irregularity, smearing adhesive on these two parts then, stick with glue agent with the outer wall cementation laminated of first wall sheet 41 peripheries on the inwall of the second wall sheet, 42 peripheries.Pressure bladder after bonding is circular circulus.The cyst wall of first wall sheet 41 is provided with oilhole, is provided with metal interface 44 in the oilhole.Metal interface 44 in the present embodiment comprises that the cross section is the adapter 441 of " T " font and is screwed onto the bolt of taking on 441 442; The cyst wall of first wall sheet is between base of taking over and bolt.This structure can be installed to metal interface 44 on the pressure bladder, and simultaneously, the cyst wall of pressure bladder plays sealing function again to this metal interface.
Limited post 5 is provided with four in the present embodiment, be located in push pedal 3 and the template 2 and with pressure bladder 4 not contact, and limited post 5 mainly plays the guiding push pedal and offsets the effect of gravity friction between push pedal and the template.The two ends of limited post 5 can be fixed on the position that is fit on the injector; Also can use the pull bar of injector clamping as limited post.
During use, the oil-out of hydraulic system is connected with metal structure 4.Behind the matched moulds, open hydraulic system, oiling to pressure bladder 4 in is owing to the pressure bladder internal capacity is very little, so that pressure bladder boosts is very fast.Behind liquid, pressure bladder expands, and promote push pedal and exert pressure and pressurize to mould, thus the locking mould.
Pressure bladder boosts towards oil in the process, and the existence of groove 21 has effectively cushioned the shear action that oiling sprays to slit between template and the push pedal both ends of the surface, has avoided the destruction of this shearing force to the pressure bladder cyst wall, guaranteed safe in utilizationly, prolonged service life of pressure bladder; The effect of the first wall sheet and the second wall sheet cementation laminated then is under pressure, and both are bonding more firm, has further guaranteed safe in utilization and service life pressure bladder.

Claims (10)

1. locked mode pressure apparatus; it is characterized in that comprising the template that is arranged on clamping mechanism and the push pedal between the corresponding mould; has the space between described push pedal and the template; be provided with a pressure bladder in this space; this pressure bladder adopts the preparation of rubber-like plastic cement material, and the sidewall of described pressure bladder is provided with the metal interface that is connected with the hydraulic test that fills the plus-pressure medium in this pressure bladder.
2. locked mode pressure apparatus according to claim 1 is characterized in that described pressure bladder and push pedal structure in the form of a ring.
3. locked mode pressure apparatus according to claim 2 is characterized in that the rounded circulus of described pressure bladder, and the ratio of the external diameter of this pressure bladder and the height in described space is 20-300.
4. locked mode pressure apparatus according to claim 3, the height that it is characterized in that described space is 5-30mm; The thickness of the cyst wall of described pressure bladder is 1.5-8.0mm.
5. according to the described locked mode pressure apparatus of the arbitrary claim of claim 1 to 4, it is characterized in that described push pedal and described template are provided with the limited post of guiding usefulness, this limited post is located in described push pedal and the described template.
6. locked mode pressure apparatus as claimed in claim 5 is characterized in that described pressure bladder comprises first wall sheet and the second wall sheet suitable with the cross section of this pressure bladder; The inwardly folding back of the periphery of described first wall sheet is mutually bonding with the periphery of the second wall sheet, and the outer wall cementation laminated of promptly described first wall sheet periphery is on the inwall of the described second wall sheet periphery.
7. locked mode pressure apparatus according to claim 6 is characterized in that the marginal position near described push pedal is provided with annular recess on the surface of the described template of described push pedal subtend.
8. locked mode pressure apparatus according to claim 7, the longitudinal section that it is characterized in that described groove is an arc.
9. locked mode pressure apparatus according to claim 8, the depth capacity that it is characterized in that described groove is 1.0mm.
10. locked mode pressure apparatus according to claim 7 is characterized in that the distance at the described push pedal of described groove distance edge is 0.5-1.0mm.
CN201110179910.7A 2011-06-28 2011-06-28 Pressure device for locking mould Expired - Fee Related CN102241120B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201110179910.7A CN102241120B (en) 2011-06-28 2011-06-28 Pressure device for locking mould
PCT/CN2012/000866 WO2013000274A1 (en) 2011-06-28 2012-06-25 Pressure device for mould locking

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110179910.7A CN102241120B (en) 2011-06-28 2011-06-28 Pressure device for locking mould

Publications (2)

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CN102241120A true CN102241120A (en) 2011-11-16
CN102241120B CN102241120B (en) 2014-05-07

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WO (1) WO2013000274A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013000274A1 (en) * 2011-06-28 2013-01-03 Chen Guoyong Pressure device for mould locking
CN104029360A (en) * 2014-05-12 2014-09-10 陈国永 Pressure device for locking mould
CN104210078A (en) * 2014-08-15 2014-12-17 宁波通用塑料机械制造有限公司 Mold closing mechanism
CN104260296A (en) * 2014-08-18 2015-01-07 宁波通用塑料机械制造有限公司 Injection machine mold-closing device
CN112848172A (en) * 2021-01-19 2021-05-28 华南理工大学 Lightweight isostatic pressing flexible mold locking mechanism and method for high-speed precise injection machine
CN114808959A (en) * 2022-06-24 2022-07-29 徐州威聚电子材料有限公司 Large-scale mounting bracket preset basis of photovoltaic board is put and is removed device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111136236B (en) * 2020-01-20 2020-09-01 宜宾职业技术学院 Automatic locking mechanism of die casting die

Citations (3)

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Publication number Priority date Publication date Assignee Title
CN2707466Y (en) * 2004-07-06 2005-07-06 河南金龙精密铜管股份有限公司 Internal high pressure forming die with multiple mold clamping forces
CN101811353A (en) * 2009-02-25 2010-08-25 鸿富锦精密工业（深圳）有限公司 Moving mould plate and injection molding device using same
CN202174758U (en) * 2011-06-28 2012-03-28 陈国永 Pressure device for mould locking

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101596759B (en) * 2009-04-30 2012-01-11 钟爱民 Air sac type vulcanizer
CN102241120B (en) * 2011-06-28 2014-05-07 陈国永 Pressure device for locking mould

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2707466Y (en) * 2004-07-06 2005-07-06 河南金龙精密铜管股份有限公司 Internal high pressure forming die with multiple mold clamping forces
CN101811353A (en) * 2009-02-25 2010-08-25 鸿富锦精密工业（深圳）有限公司 Moving mould plate and injection molding device using same
CN202174758U (en) * 2011-06-28 2012-03-28 陈国永 Pressure device for mould locking

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013000274A1 (en) * 2011-06-28 2013-01-03 Chen Guoyong Pressure device for mould locking
CN104029360A (en) * 2014-05-12 2014-09-10 陈国永 Pressure device for locking mould
CN104029360B (en) * 2014-05-12 2016-03-16 陈国永 A kind of pressure device for locking mould
CN104210078A (en) * 2014-08-15 2014-12-17 宁波通用塑料机械制造有限公司 Mold closing mechanism
CN104260296A (en) * 2014-08-18 2015-01-07 宁波通用塑料机械制造有限公司 Injection machine mold-closing device
CN104260296B (en) * 2014-08-18 2016-07-06 宁波通用塑料机械制造有限公司 A kind of injection machine matched molds apparatus
CN112848172A (en) * 2021-01-19 2021-05-28 华南理工大学 Lightweight isostatic pressing flexible mold locking mechanism and method for high-speed precise injection machine
CN112848172B (en) * 2021-01-19 2022-04-22 华南理工大学 Lightweight isostatic pressing flexible mold locking mechanism and method for high-speed precise injection machine
CN114808959A (en) * 2022-06-24 2022-07-29 徐州威聚电子材料有限公司 Large-scale mounting bracket preset basis of photovoltaic board is put and is removed device

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Publication number Publication date
CN102241120B (en) 2014-05-07
WO2013000274A1 (en) 2013-01-03

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Inventor after: Hu Tongqing

Inventor before: Chen Guoyong

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20171012

Address after: 253700 No. 038 Zhang Feng Village, Chang town, Qingyun County, Dezhou, Shandong

Patentee after: Hu Tongqing

Address before: North Willow Street Jiangdong District 315040 of Zhejiang province Ningbo 128 Lane 83, Room 302

Patentee before: Chen Guoyong

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140507

Termination date: 20180628